LTC1759 Ver la hoja de datos (PDF) - Linear Technology
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LTC1759 Datasheet PDF : 28 Pages
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LTC1759
U
OPERATIO
Table 1: Supported Charger Functions
FUNCTION
SMBus ADDRESS
(7-BIT)
COMMAND CODE
(8-BIT hex)
ACCESS
ChargerSpecInfo()
b0001_001
h11
r
ChargerMode()
b0001_001
h12
w
ChargerStatus()
b0001_001
h13
r
ChargingCurrent()
b0001_001
h14
w
ChargingVoltage()
b0001_001
h15
w
AlarmWarning()
b0001_001
h16
w
LTCVersionFunction()
b0001_001
h3c
r
OptionalMfgFunction3()
b0001_001
h3d
–
OptionalMfgFunction2()
b0001_001
h3e
–
OptionalMfgFunction1()
b0001_001
h3f
–
Alert Response Address1
b0001_100
N/A
Read Byte
1Read-byte format. 89h is returned as the interrupt address of the LTC1759. Rev 1.0 SMBus Compliant.
DATA TYPE
Register
Register
Register
Register
Register
Control
Register
Not Supported
Not Supported
Not Supported
Interrupt Address
Table 2: SMBus Word Bit Definitions for All Allowed LTC1759 Functions
FUNCTION
FIELD
WORD BIT
MAPPING
POWER-ON
RESET VALUE
(BINARY)
ALLOWED VALUES
ChargerSpecInfo
CHARGER_SPEC
3:0
0001
• The CHARGER_SPEC Reports the Version of the Smart Battery
Charger Specification the Charger Supports
• 0001 – Version 1.0
• All Other Codes Reserved
• Always Returns 0001
• Read Only. Write Will NACK
SELECTOR_SUPPORT
4
0
• 0 – Charger Does Not Support the Optional Smart Battery Selector
Commands
• 1 – Charger Supports the Optional Smart Battery Selector
Commands
• Always Returns 0
• Read Only. Write Will NACK
Reserved
15:5
0
• These Bits Are Reserved and Must Return Zero
• Read Only. Write Will NACK
ChargerMode()
INHIBIT_CHARGE
0
0
• 0 – Enable Charging (Power-On Default)
• 1 – Inhibit Charging
• Write Only. Read Will NACK
• Cleared to Power-On Reset Value When:
1) POR_RESET = 1
2) AC_PRESENT = 0
3) BATTERY_PRESENT = 0
ENABLE_POLLING
1
0
• 0 – Disable Polling (Power-On Default for Smart Battery Controlled
Chargers)
• 1 – Enable Polling (Power-On Default for Host Controlled Chargers).
• Ignored by LTC1759
• Write Only. Read Will NACK
POR_RESET
2
0
• 0 – Mode Unchanged (Default)
• 1 – Set Charger to Power-On Defaults
• This Reset Only Affects the Charger_Controller Block
• Write Only. Read Will NACK
12
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